Specifies the reason for an amount type when reported on a position. Useful when multiple instances of the same amount type are reported.
| Code | Meaning | 
|---|---|
| 0 | Options settlement | 
| 1 | Pending erosion adjustment | 
| 2 | Final erosion adjustment | 
| 3 | Tear-up coupon amount | 
| 4 | Price alignment interest | 
| 5 | Delivery invoice charges | 
| 6 | Delivery storage charges |